<template>
  <div class='home-category' @mouseleave="categoryId=''">
    <!-- 左侧菜单 -->
    <ul class="menu">
      <li v-for="item in menuList" :key="item.id" :class='{active :categoryId && categoryId===item.id}'  @mouseenter="categoryId=item.id">
        <RouterLink :to="`/category/${item.id}`">{{item.name}}</RouterLink>
        <RouterLink :to="`/category/sub/${item.id}`" v-for="item2 in item.children" :key="item2.id">{{item2.name}}</RouterLink>
        <!-- 骨架 -->
     <template v-if="!item.children">
          <XtxSkeleton bg="rgba(255,255,255,0.3)" width="60px" height="18px" style="margin-right:10px"></XtxSkeleton>
          <XtxSkeleton bg="rgba(255,255,255,0.3)" width="60px" height="18px"></XtxSkeleton>
        </template>
      </li>
    </ul>
     <!-- 弹层 -->
    <div class="layer">
      <h4>{{currCategory && currCategory.goods ? '分类' : '品牌'  }}推荐 <small>根据您的购买或浏览记录推荐</small></h4>
      <!-- 1 分类列表 -->
      <ul v-if="currCategory && currCategory.goods">
        <li v-for="item in currCategory.goods" :key="item.id">
          <RouterLink  :to="`/product/${item.id}`">
            <img :src='item.picture' alt="">
            <div class="info">
              <p class="name ellipsis-2">{{item.name}}</p>
              <p class="desc ellipsis">{{item.desc}}</p>
              <p class="price"><i>¥</i>{{item.price}}</p>
            </div>
          </RouterLink>

        </li>
      </ul>
        <!-- 2 品牌列表 -->
      <ul v-if="currCategory && currCategory.brands">
  <li class="brand" v-for="item in currCategory.brands" :key="item.id">
    <RouterLink to="/">
      <img :src="item.picture" alt="">
      <div class="info">
        <p class="place"><i class="iconfont icon-dingwei"></i>{{item.place}}</p>
        <p class="name ellipsis">{{item.name}}</p>
        <p class="desc ellipsis-2">{{item.desc}}</p>
      </div>
    </RouterLink>
  </li>
</ul>
    </div>
  </div>
</template>

<script>

import { useStore } from 'vuex'
import { computed, reactive, ref } from 'vue'
import { findHomeBrand } from '@/api/category'
export default {
  name: 'HomeCategory',
  setup () {
    const store = useStore()
    // 品牌数据自己创建添加进去
    const brand = reactive({
      id: 'brand',
      name: '品牌',
      children: [{
        id: 'brand-children',
        name: '品牌推荐'
      }],
      brands: []
    })
    // 调用品牌列表接口
    findHomeBrand(6).then(({ result }) => {
      // console.log(result)
      brand.brands = result
    })
    const menuList = computed(() => {
      // 另外两个是要二级菜单里的前两位，判断有没有孩子，有就用slice拿前面两个
      const res = store.state.category.list.map(item => ({
        ...item,
        children: item.children && item.children.slice(0, 2)
      }))
      res.push(brand)
      // console.log(111, res)
      return res
    })

    // 获取当前分类逻辑
    const categoryId = ref('')
    const currCategory = computed(() => {
      return menuList.value.find(item =>
        item.id === categoryId.value
      )
    })

    return { menuList, categoryId, currCategory }
  }

}
</script>

<style scoped lang="less">
.home-category {
  width: 250px;
  height: 500px;
  background: rgba(0,0,0,0.8);
  position: relative;
  z-index: 99;
  .menu {
    li {
      padding-left: 40px;
      height: 50px;
      line-height: 50px;
      // 鼠标悬停li的时候，背景变色
      &:hover,&.active {
        background: @xtxColor;
      }
      a {
        margin-right: 4px;
        color: #fff;
        &:first-child {
          font-size: 16px;
        }
      }
    }
  }
   &:hover {
    .layer {
      display: block;
    }
  }
 .layer {
    width: 990px;
    height: 500px;
    background: rgba(255,255,255,0.8);
    position: absolute;
    left: 250px;
    top: 0;
    display: none;
    padding: 0 15px;
    h4 {
      font-size: 20px;
      font-weight: normal;
      line-height: 80px;
      small {
        font-size: 16px;
        color: #666;
      }
    }
    ul {
      display: flex;
      flex-wrap: wrap;
       li.brand {
        height: 180px;
        a {
          align-items: flex-start;
          img {
            width: 120px;
            height: 160px;
          }
          .info {
            p {
              margin-top: 8px;
            }
            .place {
              color: #999;
            }
          }
        }
      }
      li {
        width: 310px;
        height: 120px;
        margin-right: 15px;
        margin-bottom: 15px;
        border: 1px solid #eee;
        border-radius: 4px;
        background: #fff;
        &:nth-child(3n) {
          margin-right: 0;
        }
        a {
          display: flex;
          width: 100%;
          height: 100%;
          align-items: center;
          padding: 10px;
          &:hover {
            background: #e3f9f4;
          }
          img {
              width: 95px;
              height: 95px;
          }
          .info {
            padding-left: 10px;
            line-height: 24px;
          width: 190px;
            .name {
              font-size: 16px;
              color: #666;
            }
            .desc {
              color: #999;
            }
            .price {
              font-size: 22px;
              color: @priceColor;
              i {
                font-size: 16px;
              }
            }
          }
        }
      }
    }
  }
}
</style>
